... Structure The standard configuration of GTM Medium Speed Trapezium mill includes main frame, classifier, decelarator, duct fan, ... electrical cabinet, etc. Features and benefites1. Choose the super pressurization spring and resilient connection which has a damping ... phosphate rock, calcium magnesium phosphate, coal, gangue, slag, zircon sand, talc, granite, potash feldspar, marble, barites, ceramics, ...